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2 Sheets-Sheet 1,

PLANING MACHINE.

Patented Oct. 4, 1887..

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K. WHITE.

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1S. WHITE.

PLANING MACHINE.

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UNITED STATES PATENT OFFICE.

SAMUEL K. WHITE, OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGN- MENTS,TO LAMPERT 8t 00., OF SAME PLACE.

PLANlNG-MACHiNE.

SPECIFICATION forming part of Letters Patent No. 370,912, dated October4, 1887.

Application filed May-22, 1886. Serial No. 202.988. (No model.)

To all whom it may concern:

Be it known that I, SAMUEL K. WHITE, of Chicago, in the county of Cookand State of Illinois, have invented certain new and usefulImprovementsin Lead-Planing Machines; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing bad to the accompanying drawings, and t0 the letters of referencemarked thereon, which form a part of this specification.

The object of this invention is to provide an improved machine forplaning or finishing strips of soft metal, such as printers leads; andit consists in the matters hereinafter de scribed, and pointed out inthe appended claims.

In the accompanying drawings, illustrating my invention, Figure 1 is aside elevation, partly in central vertical section, of a machineembodying my invention. Fig. 2 is avertical cross seetion of the same,taken upon line x w of Fig. 1. Fig. 3 is a sectional plan view takenupon line 3 3 of Fig. 2. Fig. 4 is a similar sectional view taken uponline 00 a: of Fig. 2. Fig. 5 is an enlarged detail plan view of partsshown in Fig. 1. Fig. 6 illustrates a form of device for actuating thereciprocating bed or table of the machine, as hereinafter described.

In the said drawings, A indicates the main frame of the machine, saidframe being sustained upon legs or standards a in the usual manner; andB, alongitudinally-reciprocating table or carriage having bearings atits side edges in guides A A upon the frame A, and adapted to sustain orsupport the strips to be operated upon.

0 indicates the knife or cutter, which is made with a horizontalcutting-edge upon its lower end adapted to operate upon the topsn rfaceof a lead or strip of metal upon the table 13; and D is avertically-movable block for supporting the cutter, said block beingattached The machine illustrated is provided, for the purpose of holdingthe metal strips to be planed upon the table 13, with a gripping device,which is actuated automatically for clamping and releasing the strips bythe action of the devices by which the table is reciprocated. For thispurpose motion is transmitted to the table through thernedium of a bar,E, which is located beneath and supported by the table B, and is adaptedto slide longitudinally to a limited extent upon the latter, so thatthere will be a certain amount of lost motion between the bar and thetable at each time the direction of motion of the latter is reversed.

The gripping device comprises, essentially, a pivoted jaw or gripper, F,which is constructed to act against an opposing surface upon the table,and is actuated by a lug or projection upon the bar E, which operates tomove said jaw at each time the bar is moved relatively to the table atthe forward and rearward limit of the movement of the table, as will behereinafter more fully explained.

The driving devices herein shown as acting upon the bar E for thepurpose of giving a reciprocatory movement to the carriage B consist ofa rack-bar, G, secured upon the said bar E, and which is made double andadapted for engagement upon both of its sides with a cog-wheel, H, whichis mounted in a frame, I, adapted to oscillate upon a horizontal axisparallel with and vertically beneath the rackbar, in such manner as toenable the said cogwheel to engage both sides of the rack-bar and passaround the end of the latter at both limits of its movement, the wheelbeing held in engagement with the rack by stops 1 upon the sides of theframe A, and caused to move around the rack at its ends by means ofcurved guide-pieces or yokes J, constructed to engage an anti-frictionroller, h, mounted upon the end of the shaft H, to which said wheel H issecured. The said yokes are arranged, as more clearly shown in Fig. 3,to hold a gap or ICO recess, h, in the wheel in engagement with rollersg at each end of the rack, and to cause the central axis of the shaft todescribe a semicircular curve about the said rollers g,so as to bringthe wheel again in position for engagement with the rack after passingaround the end of the latter. The stops I operate to limit the lateraloscillatory movement of the frame I, so as to hold the said wheel H inen- IO gagement with either one side or the other of the rack, asclearly shown in Figs. 2 and 3, the frame I being shown in dotted linesin said Fig. 2 in its position when engaging one side of the rack and incontact with the said stop 1. :5 The stops 1 are, as shown, formed byserewbolts inserted through the sides of the frame, and provided withjam-nuts upon their ends outside of the frame, so that they may beadjusted in position as required for the perfect operation of the parts.

The frame I is pivotally supported concentrically with the maindriving-shaft K of the machine, said frame, as herein shown, being forconvenience mounted upon the shaft itself,

which latter is sustained in a bearing, A adjacent to the said frame andin a hearing, A, attached to an overhanging bracket, A, bolted to theend of the frame A. The shaft H of the pinion H is preferably actuatedby means 0 of a pinion, K, upon the driving-shaft K, which pinionintermeshes with a gear-wheel, H", fixed to the said shaft H at its endadjacent to the shaft K, the frame I being bifurcated at its lower endand provided with two 5 separated bearings, I l", which engage the shaftK at points exterior to the gear-wheels K and H It is entirely obviousfrom the construction above described that when the shaft K is given 0 arotative motion the pinion H will be rotated through the medium of thegears K and H, so as to drive the rack G longitudinally in a directiondepending upon the side of the rackbar with which the said pinion H isengaged,

and that when the said rack has been carried endwise until the gap h inthe pinion engages the end roller thereof the anti-friction roller itupon the pinion-shaft, engaging the guide J, will carry the pinion,together with the frame I, laterally until the pinion engages theopposite side of the rack, when the latter will be moved in areversed-direction until its opposite end is again reached, when thedirection of its motion will be again reversed, as before.

The jaw F, forming part of the gripping device above described, isconnected by means of apivot-pin,f, with the carriage B, and is rigidlyconnected with the lever-arm F, extending rearwardly from the jaw, andadapted to engage the stop or projection e, which is attached to andmoved with the sliding bar E, the parts being so arranged that when thesaid bar is thrust in a direction to carry the carriage toward thecutter the said stop a will lift the lever F, and thereby cause theclamp-jaw F to press against the end of the lead located between it andthe carriage-bed, and when the said bar E is moved in the oppositedirection, or in such manner as to return said bed into position for theplacing of a new st1'ip,the said stop 0 will allow the lever-arm F tofall, and thereby permit the release of the lead which has been operatedupon.

The relative movement between the carriage B and the bar E is limited bysuitable stops upon said parts, so that the amount of lost motionbetween them is only sufficient to properly actuate the jaw by themovement of the lug or projection c in the manner above stated. As apreferred construction in the parts above referred to, the bar E is heldat its edges in grooves I), formed in the lower surface, by suitablelongitudinal flanges, b, upon the lower surface of the carriage B, andthe lug c is secured to or formed on aplate,E, secured to theuppersurface of the said bar E, within a recess, B, extending verticallythrough the carriage B, as more clearly shown in Figs. 1 and 5. The saidrecess B is made somewhat longer than the plate E, so as' to allow thedesired lost motion between the bar E and carriage B, the ends of thesaid plate E and the end walls of the recess B in this case forming thestops above referred to for limit ing the relative movement of the saidbar and carriage. The end walls of the said recess B are desirablyprovided with cushions I)", of leather or other suitable material, toprevent shock or jar when the parts come in contact with each other, aswill occur at the beginning of the return movement of the table, andalso at the beginning of the movement of the table in a direction forcutting in case there is no metalstripplaeed beneath thejawsF. Aspring,f, is desirably arranged to hold thelever-arm F downwardly, and therebyinsure the opening of the grip-jaw at proper times, said spring, asherein shown, being of leaf form and attached at one end to the topsurface of the carriage B, and resting at its free end upon the saidlever-arm. The recess B is shown in the drawings as covered by a thinplate, I)", having a central opening for the passage of the end of thelever-arm F, said covering-plate being for the purpose of preventing theaccess of chips or other foreign material to the said recess. The pivotf of the grip-jaw may be held by any suitably-arranged bearings upon theearriage, said pivot, as herein illustrated, being held at its ends inlugs f", formed upon a circular plate, F,whieh is held in a recessin thetop of the carriage by means of serewsf. The plate F is preferably madewith a roughened gripping-surface, F in its part opposed to the jaw F,which latter is also preferably roughened upon its working-face to moreeffectually hold the end of the metal strip or lead which is operatedupon by the machine.

The employment of a rack and pinion for actuating the table or carriageof a machine for planing printers leads or other soft-metal strips,although desirable as a means of readily giving a rapid reciprocatingmotion to the said carriage, has been found objectionable, owing tothevibratory or chattering movement thereby given to the said. carriage,such vibratory movement tending to produce an uneven or wavy surface inthe planed lead or strip, and the same result often follows from the useof cog-gearing or other similar device. at any pointin thedriving-connections by which the machine is actuated- I have found,however, that by placing a spring or cushion of rubber or other materialin the connecting parts. between the carriage or other part sustainingor holding the work and the devices by which the latter is actuated anyinjurious shaking or. vibratory movement is entirely avoided, and thatthe knife will make a perfectly clean an smooth cut.

In the machine shown in the drawings, in

which the longitudinal movement of the rack is imparted to the bedthrough the medium of the projection e and the lever F of the gripper F,a cushion, E for the purpose above cited,

is placed between the plate E, sustaining the elastic instead of a rigidconnection between the rack-bar G and the table B, it being entirelyobvious that in the machine shown the longitudinal strain by which thetable is moved does not come directly upon the table itself, but istransmitted to the latter through the medium of the projection e and theclamp-jaw F, which latter operates'to press the gripping end of thestrip against the carriage. It will thus be seen that the carriageitself, in this case, in one sense forms the lower jaw of a gripdevice,which is moved or drawn directly from the bar E, or, in otherwords, that the said carriage forms a long or extended lower .jaw to thegrip, affording suitable support for the strip to be planed.

The plate E is, as herein shown, held upon the bar E by means of screwsor bolts 6', ,insertedthrough the plate E into the bar, said screws orbolts being arranged to hold the plate E from endwise displacement,butin such manner asnot to interfere with the clasticity of theconnection afforded between said plate and bar by the said cushion E Inthe particular construction of the carriage or table B illustrated, thesaid table is provided with a central raised rib, I), made flat upon itstop surface to receive the metal strip or lead to be planed, said ribterminating at its end adjacent to the gripping device upon a level withthe gripping-surface F This construction in the table is, however, notessential to the operation of the machine, and is employed merely'tofacilitate the removal of,chips from the surface upon which the stripsare placed.

The pivoted or swinging block 0', to which the knife is immediatelyattached, is, as herein showmadapted to rotate at its upper end upon atransverse horizontalpivot, c, which is held at its ends in lugs orprojections 0 upon the plate D, and the lower end of the block Gand thecutter, 0, carried thereby are preferably adapted to swing freelyforward away from the supporting-block D in the return movement of thecarriage after, eachstrip has been planed, the cutter being arranged tofall backwardly into'position for operation as soon as the carriagebegins itsmovement toward the knife in amanner common in planing-mavarm, 0', extending laterally and downwardly therefrom and having uponits lower free end a piece or block, 0, of flexible materialsuch asrawhide-adapted to rest upon the top surface-of thebed B at one side ofthe work, the

saidarm operating to throw the knife forwardly and upwardly in thereturn or backward movement of the carriage, and to thereby sustain itscutting-edge free from the work dursaid knife.

means of setscrews a passing through a slot,

0, in the arln, whereby the latter is madecapable of adjustmentvertically, as may be found ing the backward passage of the latterbeneath As herein shown, the said arm 0 .is adjustably connected tothe-block Oby. 0 I

desirable in adjusting the position of the cutter, or under othercircumstances. The prompt return of the OUtlJGIZtO its working positionat the end of the return movement of the carriage is insured by means ofa spring, D", secured to a part of the plate D, and resting at its freeends against the lower part of the block 0, the free end of the saidspring D being, as shown-arranged to engage a pin, 0 secured in a block,0 which latter is secured upon the forward face of the block 0 andprovided with a passage, through which is inserted the shank of thecutter O, and in which it is held.

by a set-screw, c, as clearly shown in Figs. 1 and 2.

For. the purpose of adjusting-the cuttingedge of the cutter so as tobring it accurately.

ITS

by-turning both screws the plate may be moved and held accurately to andin a desired angular position. .The plate D is held in contactwith theblock D by means of aheaded bolt, 6 engaging a slot, d in the plate.

The block D,which, as before stated, is ver tically movable in thesupport A, is desirably made of dovetailed shape in cross-section andheld at its edges between guide-flanges 66* upon the frame Abearing-plates a, being herein shown as placed between the said fiangesaand the side margin ofthe block, which plates A are held in contact withthe block bymeans I of set-screws a passing through the flanges a 'tocompensate for wear.

whereby the plates may be moved inwardly The said block D is connectedwith the frame A by means of a vertical adj usting-screw, D whereby thevertical position of the block may be accurately adjusted, said screw Dbeing mounted in a bearing, a, upon the frame A and engaged with athreaded aperture in the upper part of the block D. The said block D ispreferably split "ertically in its upper part, as clearly shown in Figs.1 and 4, and set-screws are inserted through the split parts to enablethe latter to be clamped or held firmly in contact with the set-screw,the object of this construction being to enable the screw to be heldfirmly in engagement with the block, and to thereby prevent lost motionbetween the parts.

For the purpose of rigidly holding the upper end of the set-screw in itsbearing a, and for clamping said screw so as to prevent possibilityofthe adj ustmentof the block D being disturbed by the accidental turningof the screw, a hub, D, provided with turning levers or handles, asshown, is placed upon the screwshaft above the bearing (IF, andconnected with the shaft by a spline and groove, so as to allow theshaft to move longitudinally through, but not to rotatein, the hub, andupon the screw-threaded end of the screw-shaft above the hub is placed ajam-nut, D similarly provided with levers or handles, so that after thescrew has been turned by the hub D, so as to bring the cutter in adesired position vertically, the jam-nut may be screwed down upon thehub D with the effect of clamping the several parts firmly and immovablyin position.

An automatic clutch mechanism is herein shown whereby a drivingpulleyupon the shaft K may be disconnected therefrom at the termination ofeach forward and return movement of the carriage, said device beingconstructed as follows: L is the driving-pulley, mounted to rotatefreely upon the shaft K,exterior to the bearing A", said pulley beingprovided upon its hub with one of the members,l, ofa friction-clutch,the other member, Z,ofsaid clutch being mounted upon a sleeve, L,constructed to slide longitudinally but not to rotate upon the shaft K,and provided with an annular groove, Z which is engaged with the forkedend m of a sliding rod, M, having bearings at m and m upon the frame.The said rod M is connected by means of a pitman, M, with the dependingarm n of a bell-crank lever, N, pivoted upon the frame A near one sideof the latter. The opposite end, a, of said lever N is connected with arod, 0, extending to a suitable treadle, whereby the rod may beactuated,and is also adapted to engage aspringdetent, P, adapted to holdsaid arm n of the lever downwardly, and thereby retain the clutch inengagement against the action of a spring, N, arranged between the arm aof the said lever N and an opposing surface upon the frame A, saidspring operating to hold the lever N and the sliding bar M in positionfor the disengagement of the clutch. A spring-dctent, P, pivotall ysupported upon the machineframe, is provided with a hooked upper end,1), adapted to engage and hold the armndownwardly against the action ofthe spring N, the said detent P being engaged by a spring, P, tending tohold said detent normally in posi tion to engage the arm N,theprojection19 upon the said detent being so arranged that when the free end of thearm n is raised the said projection will be prevented by contact withthe end of the said arm from engagement with the latter. Upon the rearend of the carriage B is located a depending stop or projection, B,(shown in dotted lines in Fig. 1 and in full lines in Fig. 2,) the saidstop B being arranged to encounter the detent P and throw it forward outof engagement with the lever N at the moment the carriage reaches theforward or outward limit of its movement.

From the construction above described it is obvious that when thecarriage B is in position for the insertion of a metal strip or lead thestop B will be in engagement with the detent P, so as to hold the latterclear from the lever N, as shown in Fig. 1, the said lever at such timebeing thrown upwardly by the spring N, so as to retain the clutchdisengaged. If, now, it is desired to start the machine, the treadle isactuated, so as to depress the rod 0, and to thereby throw the clutchinto engagement. As soon as the shaft begins to revolve and the carriageto advance, the detent P will be released from the stop B and allowed tospring forward over the end of the arm n of the lever N, so that whenthe said lever is released by the operator the detent will retain thesaid arm and other parts of the clutch mechanism in position forengagement, and they will remain in this position until the carriage hasmade one complete reciprocation, when upon again reaching the forwardlimit of its movement the stop B will encounter the detent P, andthereby release the lever N and cause the stoppage of the machine.

The machine herein shown is provided upon the driving-shaft K, adjacentto the hearing A, with a collar, k, and between said collar and the endof the bearing is placed a washer, k, of rawhide or other similarmaterial. Upon the end of the said shaft K adjacent to the bearing 1" ofthe frame I, which engages said shaft, is also placed a similar collar,it, having between it and the bearing 1 another washer, k, the end ofthe shaft which extends beyond said collar k" being screw-threaded andprovided with a nut, k, whereby the collar and the washer k may beforced against the end of the bearing 1. The action of said nut alsotends to move the shaft longitudinally in the bearings A A, and tothereby cause the washer k to press upon the bearin gs A. By thisconstruction a means is provided for giving frictional resistance to therotation of the shaft K, and the object of such construction is tocounteract the momentum of the shaft and other moving parts, and tothereby cause the prompt IIO . stoppage of the said shaft and of thetable at the moment the clutch device is thrown out of gear by theaction of the stop B against the detent']?, it being entirely obviousthat in case 5 the impetus of the revolving parts were sufficientlt-ocarry the bar E backward toany considerable extent the gripping-jawwould be closed before the end of the strip or lead could be insertedbeneath it.

Itis found in practice that in operating upon opposite sides of a stripof soft metal, if the latter is placed inthe same positionupon the bedor'table B at each operation, and the cutter is thereby caused to biteinto the sur- I 5 face of the strip at the same place several times insuccession, the strip is liable to be pulled apart or break at suchplace. To avoid liability of this result a movable stop, f, ispreferably provided beneath the jaw F, against which stop the end of thestrip is thrust in placing it upon the table, said stop being shifted inposition after the severed strips in a batch of strips have been planedupon one'si'de, so that in planing them upon their opposite sides thecutter will strike into the opposite surfacesat points slightly in frontof or behind the places at which the first cuts begin. In the particularconstruction illustrated the said stop f is formedby or upon alever, F*,which is pivoted upon the top of the table B, and is provided with acurved. slot, f and clamp-screwf, whereby the stop may be moved to andheld at a desired distance from the end of the jawF.

The table B is herein shown as constructed to rest bygravity in theguides A A, except at the part of said guides adjacent to thecutter-supporting frame A at which point the frame A is provided withupwardly and inwardly extending flanges a", sustaining gibs a inposition to bear upon the beveled edges of the table, and thereby holdthe latter closely in place upon the guides during the action of thecutter onthe work, set-screws a being desirably provided for setting thegibs a closely up against the bearing-surfaces of the table. It is to beunderstood, however, that these and other similar details ofconstruction in the machine may be varied in carrying out my invention,as may be found convenient or desirable. c

One of the principal features of improvement in my invention is thatinvolved in the employment of an elastic connection between 55 thedriving devices by which the table or carr'iage is actuated and thetable or carriage itself. Incase the machine to which this cushion isapplied is one in which a grip-jaw for clamping the lead is actuated bya relative movement of the carriage itself and a reciprocating part towhich the power for doing it is applied, as is the case in the machineherein shown, a cushion to give the yielding or elastic connectionbetween the said reciprocating part and the carriage will usually belocated in the connections between the said recipro-- eating part andthat part of the gripping device which is actuated by it. In othercases, however, the cushion may be interposed at other points between arack and pinion, coggear, or other connecting device liable to give avibratory motion in the reciprocating table or carriage, and a carriageor table upon which the work is independently secured. A construction ofthis kind in which a sliding rackbar and pinion is employed isillustrated, for instance, in Fig. 6, in which figure blocks of rubber Eare shown as inserted between a sliding rack-bar, G, which is providedwith projections or lugs 9, between which lugs and the correspondinglugs, b upon an independent] y sliding carriage, B, the said rubberblocks E are located.

Inasmuch as important advantages are obtained by the novel feature ofconstruction described, comprising an elasticconnection between adriving device and the table orcarriage actuated thereby, said cushionis herein broadly claimed without restricting the particular manner ofits application.

I claim as my inVention- 1 1. A planing-machine comprising a reciproeating bed or table and means for actuating the table, embracing anelastic connection between said table and the driving devices,substantially as described.

2. The combination, with a reciprocating bed or table,'of means foractuating the table, comprising a rack-bar having a limited movementlongitudinally with relation to the table, and an elastic block orcushion interposed between the rack-bar and table, substantially asdescribed.

3. The combination, with a cutter andare ciprocating bed or table, of apart or bar constructed to reciprocate with the table and movable to alimited extent with relation to the latter, to which part or bar thepower for actuating the table is applied, a gripping device upon thetable, and alug or projection upon the said movable part or barconstructed to engage and actuate the gripping device, substantially asdescribed.

4. The combination, with a cutter and areciprocating table, of agripping-jaw pivoted upon the table and provided with a lever-arm, F, abar, E, having a limited movement longitudinally with relation tothetable and pro-, vided with a lug or projection, e, engaging said leverF, and means applied to the bar E for actuating the table, substantiallyas described.

5. The combination, with a cutter and a re- 6. The combination, with acutter and are ciprocating table, of a gripping-jawmounted upon thetable and constructed to act against an opposing surface upon thelatter, a sliding bar having a limited movement longitudinally withrelation to the table and provided with a part or projection engagingand actuating the jaw, a cushion interposed between said bar andprojection, and means applied to the said bar for actuating the table,substantially as described.

7. The combination, with a cutter and a reciprocating table, of agripping-jaw pivoted upon the table and provided with a lever-arm, F, abar, E, having a limited movement longitudinally with relation to thetable, a plate,E, secured to the bar and provided with a lug orprojection, c, engaging said lever-arm F, a cushion interposed betweenthe bar E and the plate E, and means applied to the said bar E foractuating the table, substantially as de scribed.

S. The combination, with a cutter and a reciprocating table, of agripping-jaw mounted upon the table and constructed to act against anopposing surface upon the latter, a sliding bar having limitedlongitudinal movement relatively to the table, and provided with a partor projection engaging and actuating the jaw, a cushion interposedbetween said jaw and the projection, a rack formed upon or attached tothe said bar, a pinion engaging said rack, and means actuating saidpinion for giving a reciprocatory movement to the table, substantiallyas described.

9. The combination, with a cutter and a reciprocating table providedwith a recess, B, near its rear end, of a gripping-jaw pivotallysupported upon the table and provided with a lever-arm, F, a slidingbar, E, mounted to slide upon the lower surface of the table andprovided with a plate, E, located within the recess B and provided witha projection or lug, e, engaging thelever-arm F, the said plate E beingmade shorter than the recess to allow a limited relative movement of thebar and table, and means applied to the said bar E for actuating saidtable, substantially as described.

10. The eombination,with the table B, provided with the recess B, of thegripping-jaw F, pivotally supported upon the table and pro vided with alever-arm, F, and a sliding bar, E, provided with a plate, E, locatedwithin said recess B, and provided with a lug or projection, c, saidrecess B being provided with cushions 0 substantially as described.

11. The combination, with the table B, of the gripping-jaw F, pivotedupon said table and provided with a lever-arm, F, a sliding or lugactuating said gripping-jaw, a double rack bar secured to said bar E, apinion adapted for engagement with both sides of said rack-bar, anoscillating frame affording bearings for the pinion, stops limiting thelateral movement of the frame, curved guides at the ends of the rack-baradapted for engagement with a projection upon the pinion, a drivingshaftmounted in the frame concentrically with the axis of oscillation of thesaid frame, and gearing connecting said driving-shaft with the pinion,substantially as described.

13'. The combination, with the table B and sliding bar E, of the doublerack bar G, attached to said bar E and provided with end rollers, g, apinion, H, attached to a shaft, H, and adapted for engagement with thesaid rackbar, said pinion being provided with a gap, h, adapted toengage the rollers r a roller, 7:, upon said shaft H, curved guides J Jat the ends of the rack-bar, an oscillating frame, I, affording bearingsfor said shaft H, a drivingshaft affording pivotal support for the saidframe I, gear-wheels upon the driving-shaft and the shaft H, and stopsI, for limiting the lateral movement of the said frame I, substantiallyas described.

14:. The combination, with the table B and a gripping device thereon, ofa stop, f, movably secured at the rear of the clamping-sun faces of saidgripping device, substantially as described.

15. The combination, with the table B and the pivoted jaw F, of a stop,f", a lever, F, sustaining said step, said lever being pivoted upon thetable B and provided with a slot and clamping-screw, substantially asdescribed.

16. The combination, with a reciprocating table, of a cutter, apivotally-sustained support for said cutter, and an arm attached to thesaid cutter-support and provided with a flexible end piece or partengaging the surface of the table, whereby the cutter is lifted clear ofthe work in the return or backward movement of the table, substantiallyas described.

17. The combination,with the reciprocating carriage or table, of rotarydriving devices connected with the carriage or table for actuating thelatter, and provided with an automatic clutch mechanism, and a frictiondevice applied to one of said rotating parts for arresting the movementsof the latter when the clutch is disengaged, substantially as described.

18. The combination,with the reciprocating table provided with aprojection or stop, B, of means for actuating the table, comprising adriving-shaft, K, a driving-pulley mounted upon the shaft and connectedwith the latter by a clutch, means connected with the clutch foractuating the latter, embracing a lever, N, having a horizontal arm, a,a spring applied to hold the clutch normally disengaged, and aspring-detent, 1?, applied to engage the said arm a for holding theclutch in engagement,

IIO

said stop B upon the table being adapted for engagement with the saiddetent, substantially as described.

19. The combination, with a reciprocating carriage or table, of apart orbar constructed to reciprocate with the table and movable to a limitedextent with relation to the latter, a gripping device upon the table, alug or projection upon the said movable part or bar c011- structed' toengage and actuate the gripping device, rotary driving-connectionsacting upon said part or bar for actuating the table and embracing anautomatic clutch mechanism, and a friction device applied to one of saidrotating parts for arresting the movement of the latter when the clutchis disengaged, sub stantially as described.

20. The combinatiomwith the reciprocating table provided with aprojection or stop, B of means for actuating the table, comprising adriving-shaft, K, a driving-pulley mounted upon the shaft and connectedwith the latter by a clutch, means connected with the clutch foractuating the latter, embracing a lever, N, having a horizontal arm, n,a spring applied to hold the clutch normally disengaged, aspring-detent, P, applied to engage the said arm n, for holding theclutch in engagement and adapted for engagement with the said stop 13*,the said driving-shaft being provided with washers k k, of rawhide orother similar material,located between collars upon the shaft and thebearings of'the latter, and means for adjusting the pressure of saidwashers upon the bearings, substantially as described.

In testimony that I claim the foregoing as my invention I affix mysignature in presence of two witnesses.

SAMUEL K. WHITE. Witnesses:

O. CLARENCE POOLE, V. F. MAYER.

